X0202 SCHEDULE 13D/A 0002146263 XXXXXXXX LIVE 1 Common Stock 09/17/2026 false 0001419275 39366L406 RTB Digital, Inc.

3131 CAMINO DEL RIO NORTH, SUITE 1400 SAN DIEGO CA 92108

Anibal Pablo Escanellas 7874237119 200 Calle San Agustin San Juan PR 00901 0002146263 N Dorsett Jason Christopher PF N X1 4193028.00 0.00 4193028.00 0.00 4193028.00 N 29.9 IN Common Stock RTB Digital, Inc. 3131 CAMINO DEL RIO NORTH, SUITE 1400 SAN DIEGO CA 92108 Jason Christopher Dorsett 200 Calle San Agustin, San Juan, Puerto Rico 00901, United States The Reporting Person is a private investor and is self-employed. His principal business address is 200 Calle San Agustin, San Juan, Puerto Rico 00901. During the past five years, the Reporting Person has not been convicted in any criminal proceeding, excluding traffic violations or similar misdemeanors. During the past five years, the Reporting Person has not been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction that resulted in a judgment, decree or final order of the type described in Item 2(e) of Schedule 13D. United States of America Personal funds The Reporting Person acquired and holds the shares of Common Stock for investment purposes The Reporting Person beneficially owns 4,193,028 shares of Common Stock, representing approximately 29.9% of the outstanding Common Stock. 4193028 Normal common stock purchase No person other than the Reporting Person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities reported herein. Not applicable. The Reporting Person continues to beneficially own more than five percent of the outstanding Common Stock. None. Not applicable Dorsett Jason Christopher Anibal Pablo Escanellas Juan 09/21/2026